The normal static electricty shock that zaps your finger when you touch a doorknob is usually between 10,000 and 30,000 volts!
60
A small airplane can fly backwards.
75
There's a phone app called RoboRoach that allows you to remotely control a cockroach through a chip that you to manually implant into the unwitting critter.
10
Scientists in China have built a prototype high-speed maglev train that is theoretically capable of reaching speeds of up to 1,800 mph (2,900 km/h).
1
More than a billion transistors are manufactured every second.
-25
The first alarm clock could only ring at 4 a.m.
120
First four countries to have television: England, the U.S., the U.S.S.R., and Brazil.
47
Originally, BMW was an airplane engine manufacturer.
69